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The Río de la Plata (Spanish: "Silver River") — which is often referred to in English-speaking countries as the River Plate (as in the Battle of the River Plate), or sometimes as the [La] Plata River — is the estuary formed by the combination of the Uruguay River and the Paraná River. It is a funnel-shaped indentation on the southeastern coastline of South America, extending 290 kilometres (180 mi) from the rivers' confluence to the Atlantic Ocean.

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